s1 = input()
 s = ""
 for a in s1:
     if a == "(" or a  == ")"or a == "["or a == "]"or a == "{"or a == "}"or a == "<"or a == ">":
         s += a
         print(s)





while '{}' in s or "[]" in s or "()" in s or "<>" in s:
    s = s.replace("[]", "")
    s = s.replace("{}", "")
    s = s.replace("()", "")
    s = s.replace("<>", "")
if s:
    print("False")
else:
    print("True")
